Day 18 concludes Chapter 13, Encouragement for Keeping this Sutra, and begins Chapter 14, Peaceful Practices.

Having last month completed the first set of things a Bodhisattva should do, we come to the second set of peaceful practices to perform.

“Second, Manjusri! A Bodhisattva-mahasattva who wishes to expound this sutra in the age of the decline of the teachings after my extinction should perform the following peaceful practices. When he expounds or reads this sutra, he should not point out the faults of other persons or sutras. He should not despise other teachers of the Dharma. He should not speak of the good points or bad points or the merits or demerits of others. He should not mention Sravakas by name when he blames them. Nor should he do so when he praises them. He should not have hostile feelings against them or dislike them. He should have this peace of mind so that he may not act against the wishes of the hearers. When he is asked questions, he should not answer by the teachings of the Lesser Vehicle, but expound the Dharma only by the teachings of the Great Vehicle so that the questioners may be able to obtain the knowledge of the equality and differences of all things.”

The Lecture on the Lotus Sutra offers this perspective:

The second peaceful practice concerns the things we say. The list is a reminder of how we should speak, avoiding such things as being overly critical of others and other sutras. It is a fine line between pointing out differences in belief and practice and drifting to arrogance and disdain. We might be tempted to adopt the harsh language of Nichiren without fully manifesting the heart of Nichiren. The words are cheap and easy to use, the compassion and caring is difficult to manifest. There is also a time and place for things and this age we live in calls for great wisdom in discerning which approach is the most beneficial to the listener first and foremost and not to our own egotistical needs at proving superiority. As the Buddha says, the teacher should not have hostile feelings, nor dislike them but should have peace of mind. We should always have the wish to attain enlightenment for ourselves and cause others to do the same.
Lecture on the Lotus Sutra